My oil fired boiler has started whistling while running. The high-pitched whistle starts about 10s after fireing up, stays pretty constant while running and then tapers off after the boiler extinguishes itself.
Any suggestions as to what might be wrong? I've seen various suggestions around a build up of limescale, but they seem to normally be referring to a much lower pitched rumbling sound.
Thanks, Piers
Make and age would help.. Fan motor bearing sounds a possibility.
Al
If it takes 10s after firing it does suggest a fuel starvation problem as a vacuum builds up in the pump in this time
Define "fireing up" do you mean blower starting or when the ignitor fires to light the boiler some seconds later?
Thinking that it might a worn jet if it hasn't been serviced/replaced every year or so. Though I'd expect that to stop PDQ after the blower stops.
Kettling due to scale can be quite high frequency but I wouldn't call that sound a "whistle", ie a single tone, it's more high freqency noise.
A Mistral Diamond. No idea of age, but instructions dated 2000.
The latter (i.e. after the whumpf - a techincal term).
The jets haven't been serviced or replaced for a few years. Whistling stops fairly quickly but not instantly - fades away over the course of a few seconds. Of course it's not doing it now.
A worn jet usually causes poor atomisation leading to loss of efficiency due to degraded combustion and eventually soots up the boiler. Not servicing an oil boiler is false economy
Our propane-burning forced-air furnace sometimes does it, too, but not always. As it's not consistent I've always assumed it's something to do with atmospheric conditions (temperature, moisture content in the combustion air etc.) rather than any kind of fault, but maybe it really is a maintenance issue... (the furnace control board never displays any kind of fault condition)
cheers
Jules
Is that a Metric whumpf or an Imperial whumpf?
It's probably where it's sucking in air through the mixture adjustment flap on the burner.
IF ITS OIL FIRED ITS THE TUBING FROM OIL TANK TO FUEL PUMP WRAP THEM WITH 3/8TH RUBBER GAS LINE HOSE IT WILL STOP IT BE SURE DO COVER FULL LEGNTH OF TUBING.IT WORKED FOR ME ON NEW INSTALL
He's probably sorted it out in the last 9 years. BTW your caps lock is stuck.
They've probably managed to sort it out in the last nine years.
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